CN-121992549-A - Eiderdown-like yarn and production process thereof

CN121992549ACN 121992549 ACN121992549 ACN 121992549ACN-121992549-A

Abstract

The application belongs to the technical field of yarns; the application provides a down-like yarn and a production process thereof, wherein the production process of the down-like yarn comprises the following steps of starting a twisting machine to twist fiber filaments into a spiral fiber semi-processed yarn; steaming and air-drying the fiber semi-processed yarn, taking the two air-dried semi-processed steamed fiber yarns, respectively feeding the two air-dried semi-processed steamed fiber yarns into a numerical control feeding roller of a two-for-one twister to form a vertical ring-shaped double-twisted yarn with the height reaching the requirement, feeding the vertical ring-shaped double-twisted yarn into a drawing roller to form the vertical ring-shaped double-twisted yarn, continuously and uniformly stretch-breaking a vertical ring structure on the vertical ring-shaped double-twisted yarn to form a fluff yarn, synchronously collecting the fluff yarn into a hank, and feeding the fluffy yarn which is napped into a hank on a precise winder to obtain the down-like finished yarn. The fabric woven by adopting the down-like yarn has excellent heat preservation effect, and can protect animals and clean the environment.

Inventors

Request for anonymity
Request for anonymity
Request for anonymity

Assignees

泉州市菲同纺想服饰有限公司

Dates

Publication Date: 20260508
Application Date: 20241031

Claims (6)

1. The production process of the eiderdown-like yarn is characterized by comprising the following steps of: s1, putting a fiber yarn on a twisting machine, starting the twisting machine to twist the fiber yarn into a spiral fiber semi-processed yarn; S2, putting the fiber semi-processed yarn into a steaming and refining device for steaming and refining, and air-drying the fiber semi-processed yarn after stabilizing the spiral angle of the fiber semi-processed yarn; S3, taking two air-dried half-processed steamed fiber yarns, respectively feeding the two half-processed steamed fiber yarns into a numerical control feeding roller of a multi-channel two-for-one twister, wherein each half-processed steamed fiber yarn is independently controlled by an independent numerical control feeding roller and enters a numerical control twisting area, the two half-processed steamed fiber yarns alternately perform overfeeding action, binding action and winding action controlled by numerical control programming, after the complex overfeeding and looping winding is completed to form a double-twisted yarn, the double-twisted yarn with the height reaching the requirement is formed, the double-twisted yarn with the shape of a standing circle enters a numerical control pulling roller, and when the feeding roller performs the numerical control programming action, the pulling roller performs coordinated numerical control programming pulling action, and the double-twisted yarn with the standing circle enters a synchronous winding drum after the pulling area is discharged; S4, feeding the multiple coiled double-twisted yarns after spooling into yarn roughening equipment in a continuous state, continuously and uniformly breaking the coiled tissues on the coiled double-twisted yarns by the yarn roughening equipment to form fluff yarns, and synchronously collecting yarns to form skeins; S5, feeding the napped and twisted fluff yarns on a precise winder, and carrying out fixed-length and constant-tension bobbin formation, wherein the bobbin formation is synchronous with waxing, so that the eiderdown-like finished yarn is obtained.
2. The process for producing a down-like yarn according to claim 1, wherein in the step S1, the fiber yarn is made of chemical fiber, regenerated cellulose fiber, biomass regenerated fiber or natural fiber, wherein the chemical fiber comprises polyester fiber, polypropylene fiber, ethylene wheel or nylon fiber, the regenerated cellulose fiber comprises viscose, modal and tencel, the biomass regenerated fiber comprises acetate fiber and polylactic acid fiber, and the natural fiber comprises cotton-wool-fibrilia.
3. The process for producing a down-like yarn according to claim 1, wherein in S1, the rotational speed of the twisting machine is 4000-8000r/min, and the tension of the filaments is adjusted to 10-50N.
4. The process for producing the down-like yarn according to claim 1, wherein in the step S2, the steaming device is a steam vacuum dry steaming device, the controllable temperature of the steam vacuum dry steaming device is 50-150 ℃, and the steaming time is more than 30 minutes.
5. The production process of the eiderdown-like yarn according to claim 1, wherein in the step S2, a tunnel type air drying box is adopted to air dry, cool and relax the steamed fiber yarn, an air outlet mechanism for circularly blowing the steamed fiber yarn is arranged in the tunnel type air drying box, the controllable temperature of the tunnel type air drying box is 24-200 ℃, and the air speed is 0.3 (1+/-20%) m/S-6 (1+/-20%) m/S.
6. A down-like yarn obtainable by the production process according to any one of claims 1 to 5.

Description

Eiderdown-like yarn and production process thereof Technical Field The invention relates to the technical field of yarns, in particular to a down-like yarn and a production process thereof. Background The natural down fiber is a well-known thermal insulation material, is widely used in the fields of advanced clothing and wadding, but is far from meeting the increasingly-improved living needs of people due to the small quantity and high price, and the imitated down fiber is a novel wadding fiber developed in the field of synthetic fibers, belongs to the fiber of which the three-dimensional curled hollow polyester fiber is subjected to organic silicon finishing, can keep warm, has good fluffiness, smooth and soft hand feeling like the natural down fiber, can be comparable with the natural down fiber in fluffiness and compression rebound, is not mildewed and eaten, has rich resources and is lower than the natural fiber. When the polyester raw material is melted at high temperature and the polyester melt is extruded into a spinneret plate at high pressure, the polyester fiber with corresponding diameter can be obtained, and then the polyester fiber is processed into short fibers with various specifications through post-treatment. In the drafting process of the subsequent processing, the fiber is fully and physically combined with the oiling agent in a certain temperature range by feeding the oiling agent in a proper proportion to the fiber, so that the original rough polyester fiber has the common silky characteristic of the down feather. However, the yarn manufactured by the method has poor heat preservation property due to complex process links, and the wearing comfort level is reduced. Disclosure of Invention Aiming at the problems, the invention provides a down-like yarn and a production process thereof. In order to solve the technical problems, the invention adopts the technical scheme that the production process of the down-like yarn comprises the following steps: s1, putting a fiber yarn on a twisting machine, starting the twisting machine to twist the fiber yarn into a spiral fiber semi-processed yarn; S2, putting the fiber semi-processed yarn into a steaming and refining device for steaming and refining, and air-drying the fiber semi-processed yarn after stabilizing the spiral angle of the fiber semi-processed yarn; S3, taking two air-dried half-processed steamed fiber yarns, respectively feeding the two half-processed steamed fiber yarns into a numerical control feeding roller of a multi-channel two-for-one twister, wherein each half-processed steamed fiber yarn is independently controlled by an independent numerical control feeding roller and enters a numerical control twisting area, the two half-processed steamed fiber yarns alternately perform overfeeding action, binding action and winding action controlled by numerical control programming, after the complex overfeeding and looping winding is completed to form a double-twisted yarn, the double-twisted yarn with the height reaching the requirement is formed, the double-twisted yarn with the shape of a standing circle enters a numerical control pulling roller, and when the feeding roller performs the numerical control programming action, the pulling roller performs coordinated numerical control programming pulling action, and the double-twisted yarn with the standing circle enters a synchronous winding drum after the pulling area is discharged; S4, feeding the multiple coiled double-twisted yarns after spooling into yarn roughening equipment in a continuous state, continuously and uniformly breaking the coiled tissues on the coiled double-twisted yarns by the yarn roughening equipment to form fluff yarns, and synchronously collecting yarns to form skeins; S5, feeding the napped and twisted fluff yarns on a precise winder, and carrying out fixed-length and constant-tension bobbin formation, wherein the bobbin formation is synchronous with waxing, so that the eiderdown-like finished yarn is obtained. Preferably, in the S1, the fiber filament is made of a chemical fiber, a regenerated cellulose fiber, a biomass regenerated fiber or a natural fiber, the chemical fiber includes a polyester fiber, a polypropylene fiber, an ethylene wheel or a nylon fiber, the regenerated cellulose fiber includes viscose, modal and tencel, the biomass regenerated fiber includes an acetate fiber and a polylactic acid fiber, and the natural fiber includes a cotton-wool fibrilia. Preferably, in the step S1, the rotating speed of the twisting machine is 4000-8000r/min, and the tension of the fiber yarn is adjusted to be 10-50N. Preferably, in the step S2, the temperature of the steaming cylinder in the steaming device is 50-100 ℃ and the steaming time is 30-90min. Preferably, in the step S2, the steaming device is a steam vacuum dry steaming device, the controllable temperature of the steam vacuum dry steaming device is 50-150 ℃, and the steaming time is more than 30 min. Prefe